Performance analysis of cooperative spatial multiplexing with amplify-and-forward relays
Performance analysis of cooperative spatial multiplexing with amplify-and-forward relays
复制标题
具有放大转发中继的协作空间复用性能分析
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
H. Zepernick
中科院分区：
文献类型：
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作者：
T. Duong;H. Zepernick
协作空间复用（CSM）系统可以在无线中继网络中实现高的空间复用增益，因为每个单天线中继同时向目的地转发源消息的不同子集。本文研究了带放大转发继电器的CSM系统的性能。具体来说，我们推导出精确的封闭形式的表达式的符号错误概率（SEP）和可实现的频谱效率的CSM与线性接收机在不同的瑞利衰落信道。评估SEP性能在高信号噪声制度，我们进一步表明，CSM与AF继电器获得一阶的分集增益。此外，已经观察到CSM优于两个公知的协作分集系统，例如，选择合并和最大比合并。我们还进行了蒙特-卡罗模拟，以验证我们的分析。
Cooperative spatial multiplexing (CSM) systems can achieve high spatial multiplexing gain in wireless relay networks since each single-antenna relay forwards simultaneously a different subset of source messages to the destination. In this paper, the performance of CSM with amplify-and-forward (AF) relays are presented. Specifically, we derive exact closed-form expressions for symbol error probability (SEP) and achievable spectral efficiency of CSM with linear receiver in dissimilar Rayleigh fading channels. Assessing the SEP performance in the high signal-to-noise regime, we further show that CSM with AF relays obtains the first order of diversity gain. Furthermore, it has been observed that CSM outperforms two well-known cooperative diversity systems, e.g., selection combining and maximal ratio combining, in term of spectral efficiency. We also perform Monte-Carlo simulations to validate our analysis.